Intermittent strip feed mechanism



May 10, 1949. A. s. HOWELL 2,469,503

ITERMITTENT STRIP FEED MECHANISM Filed July 22, 1947 e sheeis-sheet 1 f AT TY May 10, 1949.

A. S. HOWELL INTERMITTENT STRIP FEED MECHANISM Filed July 22, 1947 EEE 6 Sheets-Sheet 2 ALEERTE. HLN/ELL TT'Y May 10, 1949.

A. s. HwELl. I 2,469,503

INTERMITTENT STRIP FEED MECHANISM Filed July 22, l947 e sheets-sheet 3 ,22. y INVENTDH w l ALBERT E. HUWELL Z? E? ATT'Y.

May 10, 1949- A. s. HOWELL INTERMITTENT STRIP FEED MECHANISM e sheets-shea 4 Filed July 22, V194'? VIM/ENTEl-Fe ALBERT 5. HEM/ELL May 1o, 1949. A A, s HOWELL 2,469,503

INTERMITTENT STRIP FEED MECHANISM yIr\|\/Er\1TDs= ALBERT '5. Hmm/ELL TTY May 10, 1949. A. s. HOWELL INTERMITTENT STRIP FEED MECHANISM e sheets-sheet 6 Filed July 22, A1947 Patented May 1o, 1949 INTERMITTENT STRIP FEED MECHANISM Aibert S. Howell, Culver, Ind., assignor to Bell & Howell Company, Chicago, Ill., a corporation of Illinois Application July 22, 1947, Serial No. 762,748

33 Claims.

My invention relates particularly to intermittent strip feed mechanism for feeding motion picture lm strips provided with the usual feed perforations.

Objects of the invention reside in the provision of a novel, desirable and effective intermittent strip feed mechanism, which is particularly adapted for motion picture projecting machines, which is precise in operation, which is so constructed that the reciprocating structure thereof may have a relatively small amount of momentum, which, involving an oscillating lever for reciprocatingr the toothed strip feed means of the mechanism, provides a pivotal mounting for the lever Which while establishing a pivotal axis for the lever, provides for effecting reciprocation of the feed means connected portion of the lever different from that resulting solely from pivotal movement of the lever on said axis and conforming with rectilinear reciprocation of the toothed strip feed means, which provides for counterbalancing the reciprocating structure thereof, which involves a novel and desirable engagement and disengagement of a toothed reciprocatory feed shuttle with the feed perforations of a strip as an incident of intermittently feeding the strip, which involves a novel and desirable reciprocatory feed shuttle and bearing therefor and a novel and desirable means for actuating the feed shuttle, which provides for convenient assembly adjustment of the mechanism, which provides, preferably as an operating adjustment, for adjusting the extent of the reciprocatory strip feed and return movement of the toothed feed means or feed shuttle to conform with the spacing of the feed perforations of the strip and so accommodate for shrinkage or expansion of the strip, and which provides, preferably as an operating adjustment, for adjustment of the strip feed and return stroking range of the toothed feed means or feed shuttle for framing The invention will be better understood by reference to the accompanying drawing in which- Figure 1 is a partial sectional view in rear elevation of a motion picture projecting machine embodying my invention;

Figure 2 is a partial sectional view of the same taken substantially on the line 2 2 of Figure 1;

Figure 3 is a vertically condensed perspective view of the feed shuttle of my invention;

Figure 4 is a vertically condensed sectional View in side elevation of the feed shuttle and bearing thereof of my invention taken substantially on the line 4--4 of Figure 5;

fl D

Figure 5 is a vertically condensed View in front elevation of the feed shuttle and bearing thereof of my invention;

Figure 6y is a partial sectional view taken substantially on the line 6 6 of Figure l;

Figure 'l is an exploded view of the mounting structure of the shuttle actuating and counterbalance levers of the mechanism;

Figure 8 is a perspective view of one of the frame parts of the mechanism;

Figure 9 is a partial sectional View in rear elevation of the shuttle actuating lever mechanism of the invention;

Figures l0 and 11 are partial sectional views in rear elevation of the adjustable shuttle actuating and counterbalance lever mounting structure of the mechanism and showing the same in different positions of adjustment;

Figure 12 is a sectional view taken substantially on the line |2--I2 of Figure 13 and showing the film guide of the machine with a lm strip therein and the feed shuttle of the mechanism; and

Figures 13 and 14 are partially diagrammatic views in rear elevation of the intermittent feed mechanism of the invention and a lm strip being fed thereby and showing the mechanism in different positions of its operating cycle.

Referring to the drawing, l designates a frame part which is disposed vertically and transversely of the machine and is provided with a large circular recess 2 extending inwardly from its rear face. See Figures 1, 2 and 8. The transverse wall of the recess 2 is provided with a rectangular light aperture 3 adjacent the periphery of the recess and disposed upwardly and to one side of the axis thereof. The rear face of the transverse wall of the recess 2 is also provided with a horizontal rectangular recess 4 extending across the axis thereof and terminating at the side of this axis on which the light aperture 3 is clisposed with an opening 5 spaced below the light aperture.

The frame part l is provided with a forwardly extending bored hub 6 whose bore 'l is disposed concentrically of the recess 2 and communicates with the recess 4. The bore 'l is provided with a counterbore 8 at the inner face of the transverse wall of the recess 4 and the inner face of this recess is provided with another recess 9 communicating with the counterbore 8 and extending horizontally therefrom on the side thereof opposite that on which the opening 5 is disposed, the recess 9 being deepened outwardly beyond the counterbore 8. A cover plate Il)1 extends across the recess 2 at the rear thereof and forms a 3 closure therewith as shown in Figure 2, and is suitably secured with the frame plate I.

An arm I I is provided with a concentricalll7 bored circular enlargement I2 at one end thereof and the bore I3 of this enlargement is provided with a forwardly disposed ange I4. See particularly Figure 7. The rearward face of the arm I I is provided with. a slot I5 extending radially of the bore I3 and the forward face of this arm is provided with two slots I6 and I1 spaced radially of the bore I3 and extending angularly thereof and communicating with the slot I5. The arm II is also provided with a bore I8 therethrough which is parallel to the bore I3 and is disposed between the slots IISl and I'I.

The arm II is disposed and extends horizontally within the counterbore 8 and recess 9 with the enlargement I2 within the counterbore 8, and a flanged screwthreaded bushing I9 extends through the bore I3 0f this arm and is screwthreaded into the bore 'I and having a spring friction washer 2i engaged thereon, frictionally clamps the flange III of the arm and the spring washer between its flange 22 and the shoulder of the counterbore 8, thus providing a friction bearing on which the arm II is pivotally mounted coaxially of the bore 'I for Vertical movement, as shown in Figures 1, 2 and 9.

A plunger 23 is slidably engaged in a vertical bore 24 of the frame part I and extending downwardly from the recess 9, and is upwardly engageable with the outer end of the arm I l as best shown in Figure 9. A helical compression spring 25 within the bore 2libelow the plunger 23 reacts on a plug 23 screwthreaded into the lower end of this bore and yieldably urges the plunger 23 upwardly and thus yieldably urges the arm II upwardly. A plunger El is slidably engaged in a vertical bore 23 of the frame part I and extending upwardly from the recess 9, and is downwardly engageable with the outer end of the arm II. A rod 29 is screwthreaded, as des ignated at 35, in the bore 23 above the plunger 21 and is engageable downwardly thereon so that rotation of this rod eects in cooperation with the spring 25 vertical pivotal adjustment of the arm II on the axis of the bore 'I, the rod being provided with a suitable manipulating means, not shown, whereby the arm may be conveniently vertically adjusted during operation of the machine.

A headed stud 3! extends rearwardly through the slots I@ and I5 of the arm II in parallelism with the bore l and its shank 32 is slidably and rotatably engaged in the slot I5. See' Figures l, 2, 'l and 9. lThis stud is provided with a portion 33 which is disposed eccentrically of the shank 32 and which is slidably and rotatably engaged with theslot IIS, so that angular adjustment of this stud effects adjustment of the shank 32 along the slot I5 and accordingly horizontally and radially of the bore l.

Another headed stud 34 extends rearwardly through the slots Il! and I5 of the arm II in rparallelism with the bore 'I and its shank 35v is slidably and rotatably engaged in the slot I5. This stud is provided with a portion 36 which is disposed eccentrically of the shank 35 and which is slidably and rotatably engaged with the slot I1, so that angular adjustment of this stud effects adjustment of the shank 35 along the slot I5 and accordingly horizontally and radially of the bore 1.

The studs 3l and 34 are thus adjustable toigether vertically by reasonof their being cargroove 43 of the head lll and a shoulder 44 of the head d2. A flanged nut I5 extends rearwardly through the intermediate bore 39 of the spring plate, and a headed screw 46 extends forwardly through the bore I8 of the arm II and is screwthreaded into the nut 45, so that the spring plate 3l frictionally clamps the heads of the studs 3| and 34 rearwardly against the arm I I to the end that the studs may be adjusted on the arm and retained in adjusted position.

A` short shaft Ill extends forwardly fromthe stud 3l in approximate alinement therewith and is rotatably mounted in a bore I8 of the frame part I, and is provided at the end thereof which faces this stud, with a pair of diametrically opposite radially extending drive lugs 49. See Figures 2 and 7. The head III of the stud 3`I is also provided with a pair of diametrically opposite radially extending drive lugs 5I, anda drive disk 52 is disposed between the shaft All and head 4I and is provided with two pairs of diametrically opposite radially extending drive slots 53 dis.- posed at an angle of ninety degrees and respectively slidably engaged with the drive lugs 49 and 5I to provide a drive connection between the shaft lll and stud 39 of the Oldham type which permits radial movement of the stud 3| relative to the shaft. Another shaft 54, disposed transversely of the shaft All, is rotatably mounted in a bore 55 of the frame part I and is provided with a worm gear 55 which meshes with a spiral gear 5l formed on the shaft 4l for ro.- tating this shaft with rotation of the shaft 54,

the shaft 54 being provided with a suitable manipulating means, not shown, whereby the stud 3I may be angularly adjusted to adjust the shank 32 of this stud along the slot I5 of the arm II during operation of the machine.

'I'he head 42 of the stud 34 is provided with a diametrical slot 58, see Figure 2, which may be engaged by a screw-driver through a bore 59 of the frame part I for rota-ting this stud to ad.- just the shank 35 thereof along the slot I5 of ,the arm I I, a headed screw 6I screwthreaded into the bore 59 normally closing this bore.

A pair of bearing rollers 62 are rotatably mounted on the shank 32 of the stud 3I rearwardly of the arrn II and are retained thereon by a headed screw 53 screwthreaded into the rearward end of the shank 32,v see Figures l, 2, 7 and 9, and another pair of bearing rollers tifare rotatably mounted on the shank 35r of the stu-d 34 rearwardly of the arm II and are retained thereon by a headed screw 55 screwthreaded into the rearward end of the shank 3,5, it being observed that these pairs of bearing rollers are independently adjustable along the slot I5 of the arm I I and accordingly horizontally `and radially of the bore I, respectively, by angular adj-ustment of the studs. 3I and 34.

The studs 3l and 34'and their bearing rollers 62 and -64 are disposed at theA side of the bore 'I opposite that at which the opening 5 isA disposed, and two substantially identical horizontally-,disfposed levers 56 and 61 of light truss formation extend correspondingly from the rollers 52 in overlying relation to the opposite side of the bore 'I and into the opening 5, the bearing rollers 62 and 64 and the levers 66 and El being disposed in the recess 4. See Figures 1, 2 and 9.

The ends of the levers 66 and 67 in the region of the bearing rollers 62 are each provided with straight vertically spaced parallel opposing slide bearing surfaces 68 extending longitudinally of the levers and forming slide bearings respectively on the levers and having slidable vertical bearing engagement with the rollers 52 to pivotaily confine the levers for independent vertical oscillation thereof and to permit relative movement between the levers and these rollers horizontally and radially of these rollers, these rollers thus forming a pivotal bearing establishing a pivotal axis on which the levers are coaxaliy pivotally mounted and which pivotal axis is adjustable horizontally and radially thereof by adjustment of the shank 32 of the stud 3i along the slot I5 of the arm Il as hereinbefore described.

Each of the levers 66 and 5l is also provided with spaced concentrically arcuate opposing slide bearing surfaces 69 having their axis in the region of and disposed correspondingly with pivotal axis established by the rollers t2 and disposed in transverse relation with the bearing surfaces 88 and preferably extending across the horizontal axial plane of the rollers B2 and forining coaxial arcuate slide bearings respectively on the levers and having slidable horizontal bearing engagement with the rollers lill radially of the levers to correspondingly independently confine the levers and to permit independent pivotal movement of the levers on the pivotal axis established by the rollers 62, the rollers te forming a pivotal bearing so that the levers are pivotal as well as slidable with respect to these rollers by reason of the bearing engagement of the bearing surfaces 69 therewith, it being observed that the levers are bodily adjustable horizontally and radially of the rollers $2 by adjustment of the shank of the stud 34 along the slot of the arm Il as hereinbefore described.

The rollers 62 and the bearing surfaces 58 engaged therewith form one bearing means, and

the rollers 64 and the bearing surfaces 59 engaged therewith form another bearing and these two bearing means form a pivotal mounting for the levers 68 and 5l whereby they are independently vertically oscillable as hereinafter more fully described, the rollers and 64 being mounted on the arm il for independent adjustment horizontally and radially of the levers and being vertically adjustable together by vertical adjustment of the arm l l pivotally on the axis of the bore 1 for purposes hereinafter appearing.

A rotatable shaft 'lll extends in the bore 'l and recess 2 and is rotatably mounted in coaxial relation therewith and accordingly is disposed on an axis parallel to the pivotal axis of the levers SB and 61 and intermediate the ends thereof, see Figures 1 and 2, the shaft being rotatably mounted on suitable bearings, one of which generally designated at Il in Figure 2 and is associated with the cover Iplate lil which forms a support therefor. Each of the levers and 6l is provided with an intermediate opening 'l2 through which the shaft l0 extends, and the shaft is provided with a flange 13 adjacently spaced forwardly of the lever 66.

A series of members are mounted in succession on the shaft 10 rearwardly of the flange 13 by means of the shaft engaging through axial bores of these members, and progressing rearwardly from the flange, see Figure 2, these members consist of a bearing disk 14, a radial cam l5, a bearing disk 16, a radial cam 1l', a bearing disk 78, a radial cam 19, a bearing disk 30, a lubricant confining flange 8l, and a flywheel 82, which are clamped between the flange 'f3 and a nut 83 screwthreaded on the shaft rearwardly of the flywheel and bearing forwardly thereagainst and which are keyed to the shaft as designated at 84 in Figure 1.

The bearing disks 'I4 and 16 rotatably and slidably engage the lever 66 therebetween and the bearing disks 'I6 and 18 rotatably and slidably engage the lever 61 therebetween to provide side bearings for these levers, the cams I5 and 'll being disposed respectively within the openings 12 of the levers 66 and 61. The openings l2 of these levers are each provided with vertically spaced parallel opposing bearing surfaces 85 extending radially of the levers and horizontally and forming slide bearings which are respectively rotatably and slidably engaged on the cams 'l5 and 'Il so that the levers are oscillated with rotation of the shaft 'l0 and the cams, it being observed that the engagement of these slide bearings with the cams 'l5 and 'l1 permits bodily adjustment of the levers radially and horizontally thereof as effected by corresponding adjustment of the bearing rollers 64. The cams 75 and ll are of corresponding contour and are timed in diametrically opposite relation so that the levers SE and 67 are oscillated in timed opposite movement phase relation with the result that the lever B7 acts as a counterbalance with reference to the lever 66 and a strip feed shuttle Bt vertically reciprocated by the lever 55, the levers 86 and 5l being preferably substantially identical with resulting substantially identical weight distribution and being coaxially pivotally mounted and the cams 'l5 and 'll preferably having identical lifts and being identically operative on the levers. However, additional weight may be added to the counterbalancing lever 6l, preferably at the free end thereof as indicated by the dot and dash line 81 in Figure 1, to more fully counterbalance the lever S6 and feed shuttle 88.

A vertically extending strip feed guide is carried with and arranged forwardly of the frame part i in front `of the light aperture 3 and opening 5. As shown, this feed guide is of the same construction as that described and claimed in my co-pending application for United States Letters Patent, Serial No. 762,747, filed July 22, 1947, now abandoned, for improvement in Strip feed guide and also embodies structures described and claimed in United States Letters Patent No. 2,374,486, granted April 24, 1945, on my application for Strip feed guide, and comprises as follows:

Two series of transversely spaced laterally flexible wire-like longitudinally tensioned guide members 88 and 89 extend longitudinally of the guide and are adjacently spaced facewise of the guide to facewise guide a feed perforated motion picture film strip 9| therebetween. See Figures 1 and 12. Each series of guide members comprises two widely transversely spaced pairs of adjacently transversely spaced guide members adapted to engage respective of marginal portions of the film strip, and one pair of guide members of each series spans the usual feed perforated ||3 being extended longitudinally of the shuttle axis to retain its mesh with the gear rack H8 throughout the reciprocatory movement of the shuttle.

A stud |23 is frictionally engaged for angular adjustment in a bore i2| in the frame plate i' and extending forwardly of the rear face of the transverse wall of the recess 2 in parallelism with the shaft 'lil and disposed above the recess i and this shaft, see Figures l and 6. A stud |22 is mounted eccentrically on the rear end of the stud |20 for adjustment horizontally and correspondinCr with longitudinal movement of the rack member 5 with angular adjustment of the stud |20. A vertically extending lever |23 is provided with a bore |24 at its upper end which is pivotally engaged on the stud |22 whereby this lever is mounted for pivotal movement transversely of the reciprocatory path of the feed shuttle 855 on an axis parallel to the pivotal axis of the levers 65 and El and to the axis of the shaft lil and the cams 15, TI and 'i9 thereon, the axis of this shaft and these cams being parallel to the pivotal axis of the levers |66 and lil and being disposed. intermediate the pivotal axis of the levers and and the gear segment Htl. The lower end of the lever |23 is provided with a stud |25 which engaged in the slot H9 of the rack member lili, so that oscillation of the lever |23 effects reciprocation of the rack member ||5 and consequent oscillatory feed perforation engaging and disengaging movement of the feed shuttle et on its axis.

The main portion of the lever |23 is provided with an opening |26 through which the A extends and in which the cam 79 is and the bearing disks 'i8 and 8|! rotatably and slidebly engage this lever therebetween to provide side bearings therefor. The opening |26 of the lever |23 is provided with horizontally spaced parallel opposing bearing surfaces |21 extendingr radiaiy of this lever and vertically and forming a slide bearing which is rotatably and slidably enL by the cam 'le so that this lever is oscillated rotation of the shaft 1li and this cam to effect oscillatory feed perforation engaging and m gaging movement of the feed shuttle on its through the rack member the 'l and 'i9 being so timed as to effect intermittent of the film strip 9| with rotation of the shaft Figures i3 and le show the intermittent feed mechanism in opposite positions of the feed cycle thereof. Assuming the shaft 'lll and its cams to be rotating counterclockwise in these figures, Figure 13 shows the feed shuttle 85S positioned at the upper end of its reciprocatory feed return movement and positioned angularly feed perforation engaged position preparatory to being actuated downwardly on its feed stroke during which the nlm strip 9| is fed downwardly, and Figure 14 shows the feed shuttle positioned at the lower end of its reciprocatory strip feed and return movement and positioned angular-ly in feed perforation disengaged position preparatory to being actuated upwardly on its return stroke during which the film strip remains stationary. It is to be observed that in the feed shuttle actuating lever SS is at the upper end of its stroke, while the counterbaiancing lever is the ova/er end oi' its stroke, and that in Figure le the lever Sii is at the lower end of its stroke, while the lever t? is at the upper balancing action of the lever 6l.

Angular adjustment of the stud i2!) effects adjustment of the pivotal axis of the lever |23 horizontally and corresponding with the plane of movement of this lever to adjust the oscillating stroking range of the feed shuttle with resulting adjustment of the feed perforation engaged and disengaged positions of the feed teeth of the feed shuttle, and is an assembly adjustment.

The pivotal axis established by `.he rollers 62 for the levers G6 and 6l is disposed in the region of the axis of the gear segment iM and on the line, designated at |28 in Figure 13, extending radially of the gear segment and normal to the reciprocatory path of the feed shuttle 86, the straight Slide bearings on the levers 5t and 81 formed by the bearing surfaces 66 extend longitudinally of the radius of the gear segment which coincides with the line |28 when these levers are midway of their strokes, and the arcuate slide bearings on the levers and 6l formed by the bearing surfaces 69 are disposed concentrically of the gear segment i |4.

The bearing surfaces t8 on the levers |55 and 6l have bearing engagement with the rollers S2 longitudinally of the reciprocatory film strip feed and return path of the feed shuttle 86 to correspondingly pivotally conne these levers on the pivotal axis established by the rollers 62 and to permit relative movement between these levers and these pivotal axis establishing rollers longitudinally of the radius of the gear segment ||4 which coincides with the line |28 When these levers are midway of their strokes. The bearing surfaces 69 on the levers 56 and 6l have bearing engagement with the rollers M longitudinally 0f the line |28 to correspondingly confine these levers and to permit pivotal movement of these levers on the pivotal axis established by the rollers |52, and the cooperating bearing surfaces 69 and rollers 64 are operative in cooperation with the cooperating bearing surfaces 68 and rollers 62 to effect oscillation of the gear segment ||4 of the lever $6 and the corresponding portion of the lever 61 substantially on the axis of the gear segment throughout a range of adjustment of the rollers 62 and the pivotal axis established thereby along the line |28 and in the region of the gear segment axis so that a substantially uniform mesh of the gear segment with the gear rack i2 of the feed shuttle is maintained throughout the oscillation of the lever 56 despite the adjustment of the rollers 62 along the line |28, the said adjustment of the rollers E2 being effected by adjustment of the shank 32 of the stud 3i along the slot |5 of the arm as hereinbefore described. Observing `that the cooperating bearing surfaces 69 and rollers 64 position the levers 65 and 61 longitudinally of the line |28, this adjustment of the rollers 52 effects adjustment of the pivotal axis of these levers relative thereto and along lthe line |28 so that the extent of the stroke of the gear Segment is correspondingly adjusted with corresponding adjustment of the extent of the reciprocatory strip feed and return movement of the feed shuttle mi to conform with the spacing of the feed perforations @2 of the i'llm strip 9| and so to accommodate for shrinkage or expansion of the strip, this adjustment of the rollers 62 being preferably an operating adjustment effected by rotational adjustment of the shaft 5B which is operatively connected with the stud 3| to angu` larly adjust the same as liei'einbefore described.

Figure 10 illustrates the adjustment of the rollers 62 in which their axis is coincident with that of the gear segment |l and the bearing surfaces tl 6.9i. tite.y eerrespentlirig.. extent, Q f` the Streisaet the gear. Seeiiierit arid ef'tlieiretipreeatery. ari return i'riovvementf the f. d huttle.

i Adil liebe. illii.strate@l by! the braeket lztt- Iii this asi ,.tr' me tiyoll the. 'r.ol 1ersl62, thebearing surfaces 62,. me lyl pivot. on. the axis.. of theseA Millers and. do

ltde en thereilers..andthe-bearing. siirfaees. 69 'merelyslidelon therollers, Stand do Quot, pivotv onrtheaxis ofthesle rol1ers.

Figure 1.1 iuustrates. adjustments @faire rollers.

theeiterit Qttlietstr ofthe gear segment and. reeirgreeatery feed, a. tl., return... riererrierit et, the: feetl elitittlel designated. at... l 2li-Liri.. Rianne. it.;` aria. iitttie Desideri., l .3J ,Figure 1.1. ef.. the! rollers .litV tite, eerresneiidiria eatent et.. the; strekte. ef. trie gear segment. arid. the reeirireeater'r. feeel. arid return raqvemeritqsthgfeed.. um@ isjiihisrrated by. tiiebraeket l Battle e..isteilte-.1. which ist'greateri than,tllesextentofl the k:stroke ofitlfie.gear segment.

and.. reeipreeatery i feed. aiitl return.; aiereiiierit.. ef. f`

tlie ieetilsli ttie designated.. at. '29,.-Ei'aire '10.- Iri either. ofthe nesitie'tis. l .31.14 antiJtl eilftlie rtllers tastiera ini Figure.. 1.1, the bearingi surfaces es... betliriimterithe.axisefthese rtllersaridsiide on.I these rellersarisi thelhearirie' surfaeesfte. beth slide, onfthe rollerslilnandypivpt onthe, axsfof 4 tlieselatterrellers-i l f4 Adjustment, Qi. the. relleis.. ilY longitudinally. f; italia@ 12,8a by amusement' of... tiieshaakiee.. er1

hereiubeforevdeserbed.; eieets bodily, adjustment. ef.. the, levers.` 5.6;.. anti, El alena this.- line lter.;y the purpose.. Qfadjusting'. the, mesh.. olf'. the. gear. seg- Il .4e Qi. the( lerer. 66.,W.itli'.tlie. gear. raek.- l lf2v of...tne feedshiittlearid isv ariasiselti .lr asiiiietaient,l

The rollers 2; and 65. are adjustable ,1'or'ielttid.1I-tv naiiyefthe. reeipreeatery feed aad returrimerf. meritei tlieeesi, sliiittlle 86th.? nivetalaciistilierit Qfrthe armv il eri tile-'airis ef thesiafft itwliei altij.iistiiierit`` eieets eerrespeiidiria. adjustment et. i

theriyotalaiiis. 0f the. levers 66; anti .Gland cor.- resperisiine aeiiistiiieriteiftlie liteit-8 atie' the strominglrnange of` theleverslii andf'I and the feed shuttle for framing thepicture frames of th?. 121.111.1551@ 9..' Wl'fhtllzlghft aperti-1114 u Figure lllthearm islshown a'rj intermediate aesitieri.. of its asiliiistriieritty arid iriFiiiree the lowerextrerne ofadjustment of thisv arm is shown in full lines and the upper extreme of adjustment of.. this arm issliOWrifi'ii datand dash lines, this adjustment being preferably an operating adjustl ment.

It will b e observedthat; thekhereinbeforc describedn adjustments .o`f Y the/rollersl 62'- and U64A are correspondingly effewctiveon the levers '65" and |"|y so*thatthese.adjustments do not alter the counterbalarieirig.,aetietiefytte lever tir 'riieywheeifr is.. diseased. rearwardly within tlieetlelesiireferrrietl.: bythe, afi'il eej/er .sliitter "'34 yalso Inn 12 disposed Within, this.. erielesiire; seeiireti, the flywheel 8,2`v in concentric designated. at. |.35.,3a.1i.sl. leasA its.4 peripheral. Hritier |36 offset'forwardly as designated at |31 toe lie eleseli7 adiaeerit, the. rear. fate f 0i the transverse Wallef theree'essl- Seeriaiires. land.. The. perhipheral portieri. 13,6. 0f. the, shutter sweeps.

aerOSs the light. aperture. i.7 and. is previded 'with al segmental light' openingl` |38 see Fgllle. l, to.. intermittently, pass light th 'he light aperture s maimed relatie@ witnmpermiitexntf 'feeder the nlm strip, 9| as isl usual inA moitier; piuztine` iriaclflines.y

' Ifhe periphery oiy the flywheel 82" is provided with a facingk |39 of non-metallic friction mate@ rial and belt'ifl vis frictionally engaged about ,the facing for driving" theshaft 1.0 andthe parts pending application` for United? States!`I.`ettelr s y Patent, serial No '556;175; fliedv september "ze,

1944, for improvementl in'Bearing,v and?. upon,

which Patent-frio; 2,455,489 has issued.

Referring to Fig-ure v2, Vthe:centralportion ofl the cover plate ||l is offsetrearwardly anlfforms a relatively large forwardly facin'g'fcircular, recess |42 disposed.coaxially'ivor'the bore 1 and into which the rearwardend portion ofthe shaft projects, and a collar |43, through which the' shaft projects', is screwthreadedvl rearwardly into the recess MZ and clamps the peripheryfofja circularly uted'diaphragm |44 against va forwardly facing 'shoulder |45'ofthe-recess |42-, the

diaphragm being disposed coaxially of the shaftr '|0- and being provided-.with an axial aperture |46:

in which a bearing'member v|il'1 is suitably securedin coaxial relation-with the bore 1. A concentrically bored bushing |48- is screwthreaded into a bore |59A through the cover-plate Hland` is disposedrcoaxiallyof the bore 1'; and a lock'nut |5|, screwthreaded on this-l bushing and; engageable lagainst thelcoverv plate, servesto secure this bushing in axially adjusted position. An adjustment screw |52 isscrewthreaded; into thebore ofthe bushing M8; and ajlockfnut 53; screwthreaded onthis screwandffengageable against this bushing,v servesto secure this screw in axially adjusted;position` A. helical compression spring`v |54tis operative between the screw., |52 andthe bearing memberN IAL-to yieldably urge this bearingmember forwardly, the tensionofythis spring being adjustable.r byi axial; adjustment of the screw |52 arid' the.y diairliraam- |445 permitting. axial movement of the. bearing-y memberv while maintaining itin coaxial relation with-.the bore '7.

The bearing iiieriitierA i 4L. is. providedlwith. a forwardly faeirie; eeiieeritrie bearing. stirfaee liti 0f eerieave Dartsnherieal.; eliaraeter, and the rearA eritlef. the :Shaft itis A.lirtivitieliWitli` aJ rear.- wardly facing concentric.bearingsurface |5'|.0f eeiieare. part spherical Character which opposes. theY bearing surface. 56 axially) of ,the rotational aX.isef..the sliaitt, rehearing member |58 0i eerie veiaspheriealeliaraeter; such, as a` bearing ball, is .disposed .betweenand l,has opposite, bearing enf gag'nnt with the bearing surfaces |56 4and |51 to. rotatablyy support then rear.y en d of the, shaft* Asesoriaharinanot snowsanaglessatiauy the. Sallie. as theybearirisj. l l, rotatably suppqrt'sj the.. forward 'end of the sljrait lfla'ndfdqoneates lilithv atieri therewith. ast

13 the bearing 1| in axially opposing relation therewith to rotatably support the shaft, the bearing member of the second bearing which corresponds with the bearing member |41, being rigidly supported axially. The spring |54 serves to preload the bearings of the shaft 10, the preloading pressluie being adjustable by adjustment of the screw Constant lubrication of the bearings of the shaft 1G is provided in accordance with said Patent No. 2,455,489, and involves an 'axial lubricant bore |59 through the shaft 1|), a lubricant bore |6| extending diametrically through the ball bearing member |53, and a iluted pin 62 engaged in the bore |E| and adapted to permit the passage of lubricant thereby and loosely engaged, for example, in the bore |59 to permit limited angular movement of the bearing member |58 transversely of the rotational axis of the shaft within a range maintaining communication of these bores, the ball bearing member of the aforementioned second bearing of the shaft being also provided with a diametrical lubricant bore and a iiuted limiting pin engaged therein and functioning in the same manner as the pin |62. Lubricant under pressure passes rearwardly through the diametrical bore of the ball bearing member of the aforementioned second shaft bearing, the bore |59 of the shaft 1] and the bore |6| of the ball bearing member 58 primarily for lubricating the bearings of the shaft.

The collar |43 is provided with an internal flange |63 disposed forwardly of the rear end of the shaft 10, and this flange and the diaphragm |44 form an annular lubricant collecting enclosure |64 surrounding the bearing 1I for collecting lubricant seeping therefrom, an oil throw flange |65, on the rear portion of the shaft and surrounded by this enclosure, serving to throw lubricant seeping from the bearing 1| into this enclosure. The rearward end of the collar |43 is provided with radial slots |66 spaced angularly thereabout which communicate with a circular groove |61 of the recess i42, and lubricant collected in the enclosure |64 passes through the lowermost of the slots |56 into the groove |61 from which the lubricant is drained through a suitable duct not shown.

The transverse wall of the recess 2 is provided with a circular rearward projection i553 of relatively large diameter, and this projection is disposed concentrically of the bore "l and is of greater diameter than the extent of the recess il. The lubricant confining flange 55|, which is also of relatively large diameter, is disposed immediately rearward of the projection |68 and rearwardly overlies the recess i and the shuttle actuating mechanism. A circular concentrically bored cover disk |69, through the bore of which the shaft 1| extends, is disposed immediately forward of the flange 8| and is secured on the projection SBB by means of a circumferential .flange |1| of the disk being screw threaded on the periphery of the projection |68, an annular spacing washer H2 being interposed between the proiection and the disk to rearwardly space the disk from the projection and thus provide clearance for the flange 8| therebetween. Lubricant escaping from the shuttle actuating mechanism is thus directed into the space between the projection 58 and disk |69 and drained from the lower portion of this space by a suitable duct |13, shown in Figures 1 and 8.

A frame part |14, see Figure l, is suitably secured on the forward surface of the transverse wall of the recess 2 in front of the opening 5 and so encloses this opening. This frame part is provided with a rearwardly facing vertical lgroove lle forwardly enclosing the lower portion of the feed shuttle d5. lThe upper portion of the frame part i143 is provided with a relatively large opening V56 which is intersected by the groove |15 at the intermediate portion of the feed shuttle between the upper feed tooth portion thereof and the lower rack and gear portion thereof. Suitable packing material |11 is disposed in the opening HG and surrounds the said intermediate portion of the shuttle and slidably engages the same to prevent lubricant from working upwardly on the shuttle to the upper` feed tooth portion thereof where it might otherwise contact the lm strip ill in the feed guide.

While I have thus described my invention, I do not wish to be limited to the precise details described, as changes may be readily made without departing frem the spirit of my invention, but having thus described my invention, I claim as new and desire to secure by Letters Patent the following:

l. In an intermittent strip feed mechanism, the combination of toothed strip feed means, a lever mounted for pivotal movement and connected with said feed means for effecting reciprocatory strip feed and return movement of said feed means with oscillation of said lever, means for oscillating said lever, and the pivotal mounting of said lever comprising a nrst bearing means establishing a pivotal axis spaced transversely from. the reciprocatory path of said feed means and operative on said lever longitudinally of said reciprocatory path to correspondingly pivotally confine said lever and to permit relative movement between said lever and said pivotal axis radially of said lever and transversely of said reciprocatory path and a second bearing means operative on said lever radially of said lever and transversely of reciprocatory path to correspondingly confine said lever and to permit pivotal movement of said lever on said pivotal axis and operative in cooperation with said first bearing means to determine the character of reciprocation of the feed means connected portion of said lever.

2. In an intermittent strip feed mechanism, the combination of toothed strip feed means, a lever mounted for pivotal movement and connected with said feed means for effecting reciprocatory strip feed and return movement of said feed means with oscillation of said lever, means for oscillating said lever, and the pivotal mounting of said lever comprising a pivotal 'rst bearing member establishing a pivotal axis spaced trans-- versely from the reciprocatory path of said feed means, a lineal second bearing member on said lever and extending radially of said lever and transversely of said reciprocatory path and having bearing engagement with said first bearing member longitudinally of said reciprocatory path to correspondingly confine said lever and to permit relative movement between said lever and rst bea-ring memberradially of said lever and transversely of said reciprocatory path, a third bearing member on said lever, and a fourth bearing member having bearing engagement with said third bearing member radially of said leve-r and transversely of said reciprocatory path to correspondingly confine said lever and to permit pivotal movement of said lever on said pivotal axis and at least one of said third and fourth bearing members being lineal and extending lineally of said reciprocatory path, said bearing members cooper- 1155 ating tOJdetermi-nethecharacter of reciprocation ofthe feedimeansgconnectedportion of said lever.

3 Inan intermittentstripieed mechanism, the combination. oftoothedstrip.feedfmeans, a lever mounted. for pivotal. movement and connected Wthsaid feed -means for. effecting, reciprocatory strip feed and return.v movement of said feed means with oscillatiomof, saidlever, means for oscillating said lever, andV the pivotalmounting ofv said lever. comprisingy a flrstbearing means establishing. ak pivotal axis spaced transversely from,the reciprocatory` p athof said feed means and operative onsaidlever longitudinally of said reciprooatoryv path to correspondingly pivotally confine saidlever and to permit relative movementv between said lever. and said pivotal axis radially of said lever and transversely of said reciprocatory path` and. including adjustable means-.operative.toadjust said pivotalfaxis radiallysofsaidlever and transversely of said reciprocatorypath and a .second bearing means operative on said lever radially. of said lever and transversely of said reciprooatorypath to correspondingly confine said' lever and to permit pivotal movementof said lever onsaid pivotal axis and operative in cooperationwith said first bearing meansto determine theJcharacter of reciprocation ofthe feed meansconnected portion of said lever.

il` In an intermittent strip feed mechanism, the combinationof toothed .stripfeed means, a lever mountedY for pivotal' movement and connected with said feedmeans for, elfecting reciprocatory strip feedand return movement of said feed means with voscillation of gsaid lever, means for oscillating saidlever, andthe pivotal mounting of said lever comprising` a pivotal. rst bearing member establishing .a pivotal axis spaced transversely from the reoiprocatory path ofsaid feed means, a lineal second bearing member, onsaid lever and extendingradiallyof said .lever andtransversely of said reciprocatory path and having bearing engagement with saidrst bearing member longitudinally. of said reciprocatory path to correspondingly conne said `leverA and to permit relative?. movement. between said lever and first bearing member radially of Asaid lever and transverselyofsaid reciprocatory path, a third bearing member on said lever, and a fourth bearing member-having bearing engagement with said third hearing, member radiallyiof said lever and transversely ofsaid reciprocatorypath to correspondingly confine said lever. andto -permit pivotal movement of said .lever on .said `pivotal axis and at least one of said third and fourth bearing members being lineal andiextendingilineally of said reciprocatoryl path, said bearing members cooperatingto determine thecharacter of reciprocation of the feed means connected portion of said lever.

5.1. Inan intermittent-strip feed mechanism, the combination of a toothed. strip feed shuttle mounted for reciprocatory strip feed and return movement, a lever, mounted fforrpivotal. movement corresponding with fthereciprocatorypath of said shuttle, an operative connection between said shuttleand lever for reciprocatingsaid shuttle with oscillation ofsaid'lever and including a segment fon said lever and having rolling relation with said shuttle, means-for oscillating said lever, and theapi-vota-l mountingof. said lever comprising a rstbearing means establishing apivotalfaxis in.y

toT said;freciprocatory path. and i operative on said leveelongitudinally;oigsaidzreciprocatory path; to

correspondingly pivotally Confinev said; lever? andi toV permit relative movement between saiddeverr and .said pivotal axis?. longitudinally vof the-radius; of said segment-,which coincides with said' line;y when said leverl is midway; of its strokefand-ne cluding adjustable l meansv operative to adjust said pivotal axis along said .line anda second ,bear-w ing means operative on said lever longitudinally; of-saidline to correspondingly confine the same and'to permit'pvotal movementfof said .leverfon'a said pivotal axis andoperativey in cooperation'withi: said rstfbearing means to effect oscillation'of said-i` segment substantially onithe axis of Vsaid segment! throughout a range of.I said adjustment of 'said pivotal axis.

6; In lan intermittent strip, feed-mechanism, the-i combination of a toothed strip feed shuttlef. mounted for reciprocatory st-rip feed and lreturn. movement, a lever mounted for pivotal1move-- .ment corresponding with the reciprocatory: path,-

of saidshuttle, an operative connection between said shuttle and lever for reciprocating said: shuttle with oscillation of said `lever andincludingsa segment on saidlever and'having rolling. rela'-l vtion withA saidfshuttle, means for oscillating'saids1 lever, and the pivotal mounting of said lever comprising a pivotal first bearing'memberestablish-I ing a pivotal axis in the region ofthe axis ofsaidl segment and on the line extending radially of -saidi segment and norm-alto saidreciprocatory pathV and mounted for adjustmentl alongv said? line,y a lineal second bearing member on said leverand extending longitudinally of the radius ofn said segment which coincides with said line when said' lever is midway of its stroke andhaving bearingl engagement with said rst bearing member longil tudinally of the saidreciprocatory path to correspondingly pivotally confine said lever and topermit relative movement between saidlever andf said-first bearing member longitudinally ofsaidf radius, a lineal third bearing member on said leverl and extending the plane of movement of said lever in transverse relation with said secondA bearing member, and a fourthbearingwmember` having bearing engagement with said third bear-l ing member longitudinally of said line to correspondingly confine said lever and vto permit pivotal movement of said leveronsaid pivotal axis, saidi bearing members being operativel to effect oscillation of said segment substantially on the axis of said segment throughout a range of said adjustmentof said rst bearing member.

'7. In an'intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted-for reciprocatory strip feed and returnmovement, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle, an operative connection between saidj shuttle and lever for reciprocating said shuttle with oscillation of .said lever andincluding a segment on said lever and having rolling relation. with said shuttle, means for oscillating said lever, and the pivotal mounting of said lever comprising a pivotal rst bearing memberv establishing' a pivotal axis in the region of the axis of said segment and on the line extending radially of .said segment and normalto, said reciprocatory path and mounted for adjustment along said line, a, straight lineal second. bearing member on said, lever and extending longitudinally of the radiusof said segment which. coincides with said line.` when said lever is midwayofits stroke and having., bearing v.engagement with .said first bearingmemberV longitudinally of said reciprocatory. pathV t0;

correspondingly pivotally confine said lever and to permit relative movement between said lever and said first bearing member longitudinally of said radius, an arcuate lineal third bearing member on said lever and disposed concentrically of said segment and in transverse relation With said second bearing member, and a pivotal fourth b-earing member having bearing engagement with said third bearing member longitudinally of said line to correspondingly coniine said lever and to permit pivotal movement of said lever on said pivotal axis, said bearing members being operative to eect oscillation of said segment substantially on the axis of said segment throughout a range of said adjustment of said rst bearing member.

8. In intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocatory strip feed and return movement, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle, an operative connection between said shuttle and lever for reciprocating said shuttle with oscillation of said lever and including a segment on said lever and having rolling relation with said shuttle, means for oscillating said shuttle, and the pivotal mounting of said lever comprising a first bearing `means establishing a pivotal axis in the region of the axis of said segment and on the line extending radially of said segment and normal to said reciprocatory path and operative on said leve-r longitudinally of said reciprocatory path to correspondingly pivotally confine said lever and to permit relative movement between said lever and said pivotal axis longitudinally of the radius of said segment which coincides with said line when said lever is midway of its stroke and including adjustable means operative to adjust said pivotal axis along said line and a second bearind means operative on said lever longitudinally of said line to correspondingly confine t e same and to permit pivotal movement of said lever on said pivotal axis and operative in cooperation with said first bearing means to effect oscillation of said segment substantially on the axis of said segment throughout a range of said adjustment of said pivotal axis and including adjustable means operative to adjust said lever longitudinally of said line.

9. In an intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocatory strip feed and return movement, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle, an operative connection between said shuttle and lever for reciprocating said shuttle with oscillation of said lever and including a segment on said lever and having rolling relation with said shuttle, and the pivotal mounting of said lever comprising a pivotal first bearing member establishing a pivotal axis in the region of the axis of said segment and on the line extending radially of said segment and normal to said reciprocatory path and mounted for adjustment along said line, a lineal second bearing member on said lever and extending longitudinally of the radius of said segment which coincides with said line when said lever is midway of its stroke and having bearing engagement with said first bearing member longitudinally of said reciprocator-y path to correspondingly pivotally confine said lever and to permit relative movement between said lever and said first bearing member longitudinally of said radius, a lineal third bearing member on said lever and extending in the plane of movement of said lever in transverse relation with said second bearing member, and a fourth bearing member having bearing engagement with said third bearing member longitudinally of said line to correspondingly conne said lever and to permit pivotal movement of said lever on said pivotal axis and mounted for adjustment longitudinally of said line to correspondingly adjust said lever, said bearing members being operative to eect oscillation of said segment substantially on the axis of said segment throughout a range of said adjustment of said first bearing member.

10. In an intermittent strip feed mechanism, the combination recited in claim 5 and further characterized in combination in that said first bearing means includes a second adjustable means operative to adjust said pivotal axis longitudinally of said reciprocatory path.

11. In an intermittent strip feed mechanism, the combination recited in claim 6 and further including in combination a mounting member mounted for adjustment longitudinally of said reciprocatory path and upon which said rst bearing member is mounted for said adjustment thereof.

12. In an intermittent strip feed mechanism, the combination recited in claim 9 and further including in combination a mounting member mounted for adjustment longitudinally of said reciprocatory path and upon which said rst and fourth bearing members are mounted for said adjustments thereof.

13. In an intermittent strip feed mechanism, the combination recited in claim 6 and further characterized in that said lever oscillating means comprises a rotatory member operative on said lever and disposed on an axis parallel to and spaced from said pivotal axis longitudinally of said line, and further including in combination a mounting member mounted for pivotal adjustment on the axis of said rotatory member and upon which said first bearing member is mounted for said adjustment thereof.

14. In an intermittent strip feed mechanism, the combination recited in claim '7 and further characterized in that said lever oscillating means comprises a rotatory member operative on said lever and disposed on an axis parallel to and spaced from said pivotal axis longitudinally of said line, and further including in combination a mounting member mounted for pivotal adjustment on the axis of said rotatory member and upon which said iirst bearing member is mounted for said adjustment thereof and upon Which said fourth bearing member is also mounted.

15. In an intermittent stripy feed mechanism, the combination recited in claim 9 and further characterized in that said lever oscillating means comprises a rotatory member operative on said lever and disposed on an axis parallel to and spaced from said pivotal axis longitudinally of said line, and further including in combination a mounting member mounted for pivotal adjustment on the axis of said rotatory member and upon which said first and fourth bearing members are mounted for said adjustments thereof.

16. In an intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocatory strip feed and return movement along and for oscillating strip perforation engaging and disengaging movement about an axis extending longitudinally of a guided strip, a pair of levers substantially coaxially pivotally mounted for independent oscillation corresponding with the reciprocatory path ofv shuttle and extending correspondingly from their pivotal axis in overlying relation, an operative connection between said shuttle and a first of said levers for reciprocating said shuttle with oscillation of this lever and adapted to permit oscillation of said shuttle about said first mentioned axis, a shuttle oscillating member mounted for reciprocation transversely of said reciprocatory path and corresponding with the planes of movement of said levers a-nd operatively connected with said shuttle for oscillating the same with reciprocation of said shuttle loscillating member', and three angularly xed radial cams mounted for rotation on an axis parallel to the axis of said levers and two of said cams being respectively operative on said levers to oscillate the same in timed opposite movement phase relation whereby the second of said levers acts as a counterbalance and the third of said cams being operative on said shuttle oscillating member to oscillate said shuttle i-n timed relation with reciprocation thereof to intermittently feed the strip.

17. In an intermittent strip feed mechanism, the. combination of a toothed strip feed shuttle mounted for reciprocatory strip feed and return movementy along and for oscillating strip perforation engaging and disengaging movement about an axis extending longitudinally of a guided strip and said shuttle being provided with a gear rack extending longitudinally of said axis and having the teeth thereof arcuatev and disposed concentrically of said axis and further provided with a gear disposed concentrically of said axis, a pair of levers coaxially pivotally mounted for independentk movement corresponding with the reciprocatory path of said shuttle and extending correspondingly from their pivotal axis in overlying relation, a rst of said levers being provided with a gear segment meshing with said rack for reciprocating said shuttle with oscillation of this' lever, a rack member mounted for reciprocation transversely of said shuttle axis and corresponding with the planes of movement of said levers and provided with a gear rack extending longitudinally of the reciprocatory path thereof and meshing with said shuttle gear for oscillating said shuttle with reciprocation of said rack member, a third lever mounted for pivotal movement transversely of the reciprocatory path of said shuttle on an axis parallel to the pivotal axis of said pair of levers and disposed intermediate this latter axis and said gear Segment and operative on said rack member to reciprocate the same with oscillation thereof, and three angularly fixed radial cams mounted for rotation on an axis parallel to the pivotal axes of said three levers and disposed intermediate the pivotal axes of said pair of levers and said gear segment and two of said Icams being respectively operative on said pair of; levers to oscillate the same in timed opposite movement phasel relation whereby the second of said levers acts as a counterbalance and the third of said' cams being operative on said third lever t oscillate said shuttle in timed relation with reciprocation thereof to intermittently feed the strip'.

18. In an intermittent strip feed mechanism, the combination of toothed strip feed means, a pair of levers substantially coaxially pivotally mounted for independent pivotal movement and extending correspondingly from their pivotal axis in overlying relation and afiirst of said levers being connected with said feed means for effecting reciprocatory strip feed and return movement of said feed means with oscillation of this 20 lever, means for oscillating said levers in timed opposite movement phase relation whereby the second of said levers acts as a counterbalance, and the pivotal mounting of said levers comprising a first bearing means establishing a pivotal axis spaced transversely from the reciprocatory path of said feed means and operative on said levers longitudinally of said reciprocatory path to correspondingly pivotally confine said levers and to permit relative movement between said levers and said pivotal axis radially of said levers and transversely of said reciprocatory path and including adjustable means operative to adjust said pivotal axis radially of said levers and transversely of said reciprocatory path and a second bearing means operative on said levers radially of said levers and transversely of said reciprocatory path to correspondingly coniine said levers and to permit pivotal movement of said levers i on said pivotal axis and operative in cooperation with said first bearing means to determine the character of a reciprocation of the feed means connected portion of said lever.

19. In an intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocatory strip feed and return movement, a pair of levers substantially coaxially pivotally mounted for independent oscillation corresponding with the reciprocatory path of said shuttle and extending correspondingly from their pivotal axis in overlying relation, an operative connection between said shuttle and a first of said levers for reciprocating said shuttle with oscillation of this lever and including a segment V on this lever and having rolling relation with said shuttle, means for oscillating said levers in timed opposite movement phase relation whereby the second of said levers acts as a counterbalance, and the` pivotal mounting of said levers comprisfr ing a first bearing means establishing a pivotal axis in the region of the axis of said segment and on the line extending radially of said segment and normal to said reciprocatory path and operative on said levers longitudinally of said f reciprocatory path to correspondingly pivotally conne said levers and to permit relative movement between said levers :and said pivotal axis longitudinally of the radius of said segment which Icoincides with said line when said levers are midway of their strokes and including adjustable means operative to adjust said pivotal axis along said line and a second bearing means operative on said levers longitudinally of said line to correspondingly confine the same and to permit pivotal movement oi said levers on said pivotal axis and operative in cooperation with said rst bearing mea-ns to effect oscillation of said segment and the corresponding portion of said second lever substantially on the axis of said segment throughout a range ofV said adjustment of said pivotal axis.

20. In an intermittent strip feed mechanism, the combination recited in claim 19 and further characterized in combination in that said first bearing means includes a second adjustable means operative to adjust said pivotal axis longitudinally of said reciprocatory path.

21. In an intermittent strip feed mechanism, the combination recited in claim 19 and further characterized in combination in that said second bearing means includes an adjustable means operative to correspondingly adjust said levers lon.-

gitudinally of said line.

22. In an intermittent stripV feed mechanism," the combination. recited in claim 19 and'further characterized in combination in that said first bearing means includes a se-cond adjustable means operative to adjust said pivotal axis longitudinally of said reciprocatory path and that said second bearing means includes adjustable means operative to correspondingly adjust said levers longitudinally of said line.

23. In an intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocating strip feed and return movement along and for oscillating strip perforation engaging and disengaging movement about an axis extending longitudinally of a guided strip and said shuttle being provided with a gear rack extending longitudinally of said axis and having the teeth thereof arcuate and disposed concentrically of said axis, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle and provided with a gear segment meshing with said rack for reciprocating said shuttle with oscillation of said rack, and means for oscillating said lever and shuttle in timed relation to intermittently feed the strip.

24. In an intermittent strip feed mechanism, the combination lof a toothed strip feed shuttle mounted for reciprocating strip feed and return movement along and for oscillating strip perforation engaging and disengaging movement about an axis extending longitudinally of a guided strip and said shuttle being provided with a gear rack extending longitudinally of said axis and having the teeth thereof arcuate and disposed concentrically of said axis and further provided with a gear disposed concentrically o-f said axis, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle and provided with a gear segment meshing With said rack for reciprocating said shuttle with oscillation of said lever, a rack member mounted for reciprocation transversely of said axis and provided with a gear rack extending longitudinally of the reciprocatory path thereof and meshing with said shuttle gear for oscillating said shuttle with reciprocation of said rack member, and means for oscillating said lever and reciprocating said rack member in timed relation to intermittently feed the strip.

25. In an intermittent strip feed mechanism, the combination of a toothed strip feed shuttle mounted for reciprocating strip feed and return y movement along and for oscillating strip perforation engaging and disengaging movement about an axis extending longitudially of a guided strip, said shuttle being provided With a gear rack extending longitudinally of said axis and having the teeth thereof arcuate and disposed concentrically 'of said axis and further provided with a gear disposed concentrically of said axis, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle and provided with a gear segment meshing with said rack for reciprocating said shuttle with oscillation of said lever, a rack member mounted for reciprocation transversely of said axis and corresponding with the plane of movement of said lever and provided with a gear rack extending longitudinally of the reciprocatory path thereof and meshing with said shuttle gear for oscillating said shuttle With reciprocation of said rack member, a second lever mounted for pivotal movement transversely yof the reciprocatory path of said shuttle on an axis parallel to the pivotal axis of said rst mentioned lever and operative on said rack member to reciprocate the same with oscillation thereof, and two angularly xed coaxial radial cams mounted for rotation on an axis parallel to the axes of said levers and respectively operative on said levers to oscillate the same in timed relation to intermittently feed the strip.

26. In an intermittent strip feed mechanism, the combination of a strip feed shuttle mounted for reciprocatory strip feed and return movement along and for oscillatory strip perforation engaging and disengaging movement about an axis extending longitudinally of a guided strip and adjacently spaced facewise from the strip and disposed substantially opposite a feed perforated portion of the strip, said shuttle being provided with a feed tooth extending radially 0f said axis and adapted for strip perforation engaging and disengaging movement with said oscillatory movement of said shuttle in an arcuate path extend-ing predominately edgewise of the strip, and means for reciprocating and oscillating said shuttle along and about said axis in timed relation to intermittently feed the strip.

27. In an intermittent strip feed mechanism, the combination of an elongated feed shuttle extending longitudinally of a guided strip and adjacently spaced facewise from the strip and disposed substantially opposite a feed perforated portion of the strip and mounted for reciprocatory strip feed and return movement along and for oscillatory strip perforation engaging and disengaging movement about a correspondingly extending and disposed axis, one longitudinal portion of said shuttle being provided with a plurality of feed teeth spaced longitudinally and extending correspondingly radially thereof and adapted for strip perforation engaging and disengaging movement with said oscillatory movement of said shuttle in an arcuate path extending predominately edgewise of the strip, and means operative on said shuttle in spa-ced relation with said feed teeth longitudinally of said shuttle for reciprocating and oscillating said shuttle along and about said axis in timed relation to intermittently feed the strip 28. In an intermittent strip feed mechanism, the combination of a laterally flexible wire-like bearing member extending longitudinally of a guided strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, a toothed feed shuttle slidably mounted on said bearing member `between said spaced points for reciprocatory strip feed and return movement, and means for reciprocating said shuttle along said bearing member.

29. In an intermittent strip feed mechanism, the combination of a laterally flexible wire-like bearing member extending longitudinally of a guided strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, a toothed feed shuttle provided with a bore engaged on said bearing member between said spaced points for reciprocatory strip feed and return movement and oscillatory strip perforation engaging and disengaging movement of said shuttle along and about said bearing member, and means for reciprocating and oscillating said shuttle along and about said bearing member to intermittently feed the strip,

30. In an intermittent strip feed mechanism, the combination of a laterally flexible Wire-like bearing member extending longitudinally of a guided strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, a toothed elongated tubular feed shuttle having its bore engaged on said bearing member between said spaced points for reciprocatory strip feed and return movement and oscillatory strip perforation engaging and disengaging movement of said shuttle alongand about said bearing member, and means for reciprocating and oscillating said shuttle along and about said bearing member to intermittently feed the strip.

3l. In an intermittent strip feed mechanism, the combination of a laterally exible wire-like bearing member extending longitudinally of a guided strip and adjacently spaced facewise of the strip and disposed substantially opposite a feed perforated portion of the strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, an elongated tubular feed shuttle havin-g its bore engaged on said bearing member between said spaced points for reciprocatory strip feed and return movement and oscillatory strip perforation engaging and disengaging movement of said shuttle along and about said bearing member, said shuttle being provided with a feed tooth s the combination of a laterally flexible wire-like bearing member extendinglongitudinally of a guided strip and adjacently spaced facewise of the strip and disposed substantially opposite a feed perforated portion of the strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, an elongated tubular feed shuttle having its bore engaged on said bearing member between said spaced points for reciprocatory strip feed and return movement and oscillatory strip perforation engaging and disengaging movement of said shuttle along and about said bearing member, one longitudinal portion of said shuttle being provided with a pluralityof feed teeth spaced longitudinally and extending correspondingly radially thereof and adapted for strip perforation engaging and disengaging movement with said oscillatory movement of said shuttle in an arcuate path extending predominately edgewise of the strip, another lon-gitudinal portion of said shuttle being provided with a gear rack extending longitudinally thereof and having the teeth thereof 24 arcuate and disposed conoentrically of said shuttle bore and further provided with a gear disposed concentrioally of said shuttle bore, a lever mounted for pivotal movement corresponding with the reciprocatory path of said shuttle and provided with a gear segment meshing with said rack for reciprocating said shuttle with oscillation of said lever, a rack member mounted for reciprocation transversely of said shuttle bore and provided with a gear rack extending longitudinally of the reciprocatory path thereof and meshing with said shuttle gear for oscillating said shuttle with re'- ciprocation of said rack member, and means for oscillating said lever and reciprocating said rack member in timed relation to intermittently feed the strip,

33. In an intermittent strip feed mechanism, the combination of a laterally flexible Wire-like vertically disposed bearing member extending longitudinally of a vertically guided strip and adjacently spaced facewise of the strip and disposed substantially opposite a feed perforated portion of the strip, tensioning support means operative on said bearing member at spaced points therealong to longitudinally tension the same, an elongated tubular feed shuttle having its bore engaged on said bearing member between said spaced' points for reciprocatory strip feed and return movement and oscillatory strip perforation engaging and disengagin-g movement of said shuttle along and about said bearing member, said shuttle being provided with a feed tooth at an upper portion thereof and extending radially of said bore and adapted for strip perforation engaging and disengaging movement with said oscillatory movement of said shuttle in an arcuate path extending predominantly edgewise of the strip, means operative on said shuttle at a lower portion thereof to effect strip feeding movement of the same, and packing means surrounding and slidably engaging said shuttle between said upper and lower portions to provide a lubricant barrier.

ALBERT S. HOWELL.

REFERENCES CITED The following references are of record in the file of this patent:

UNTED STATES- PATENTS Number n Name Date 1,450,343 Wescott Apr. 3, 1923 2,019,261 I-Iowell Oct. 29, 1935 2,425,814 Laube et al v Aug. 19, 1947 FOREIGN PATENTS Number Country Date 388,454 Germany Jan. 14, 1924l 

